Navigation Links
New study: Home energy savings are made in the shade
Date:5/8/2009

Trees positioned to shade the west and south sides of a house may decrease summertime electric bills by 5 percent on average, according to a recent study* of California homes by researchers from the National Institute of Standards and Technology (NIST) and the U.S. Department of Agriculture (USDA).

The first large-scale study of its kind, the research paper considers the effects of shade on 460 single-family homes in Sacramento during the summer of 2007 and provides hard statistics showing how well-placed shade trees can reduce energy costs and atmospheric carbon, as well.

People have known for a long time that trees have multiple benefits for people, but weve quantified one of them for the first time using actual billing data and put a dollar value on it, said NISTs David Butry, who authored the paper with Geoffrey Donovan of the USDA Forest Services Pacific Northwest Research Station.

The studys findings included:

  • Planting trees on the west and south sides of a house decreased summertime electricity use, but planting them on the north actually increased it. Those on the east had no effect.
  • Fast-growing trees provide better help than do smaller ones, and placement of the trees, particularly the distance from the house, is a significant factor.
  • A London plane tree, planted on the west side of a house, can reduce carbon emissions from summertime electricity use by an average of 31 percent over 100 years.

This last finding was particularly significant to Butry, who said that trees not only reduce the carbon produced by the local gas or coal-fired power generator, but also remove carbon dioxidea greenhouse gasfrom the atmosphere.

Trees sequester carbon in addition to providing shade, Butry said. We measured how much these shade trees reduced the carbon created by burning fuels to produce the electricity, and found that the trees also sequestered an equivalent amount of carbon on top of that. So theres a double benefit.

Utility companies from as far away as South Korea and South Africa have contacted the team about expanding the study, which was limited to a single season in a single city.

It would be really interesting to look at how the effect varies across regions of the U.S. and of the world, and to see what happens in wintertime, Butry said. Sacramento Municipal Utility was very helpful in providing us with the data we needed. But future studies will depend on who has data and shares it with us.


'/>"/>

Contact: Chad Boutin
boutin@nist.gov
301-975-4261
National Institute of Standards and Technology (NIST)
Source:Eurekalert  

Related biology news :

1. UNC study: Scientists identify chemical compound that may stop deadly brain tumors
2. Study: Health undervalued in reproductive rights debate
3. Study: Fluid buildup in lungs is part of the damage done by the flu
4. UNC study: Tinkering with the circadian clock can suppress cancer growth
5. Study: Excessive use of antiviral drugs could aid deadly flu
6. Study: Did early climate impact divert a new glacial age?
7. UNC study: Text messaging may help children fight off obesity
8. Study: Elderly Women can increase strength but still risk falls
9. Study: Wildlife need more complex travel plans
10. Study: Tropical wetlands hold more carbon than temperate marshes
11. Study: Bird diversity lessens human exposure to West Nile Virus
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New study: Home energy savings are made in the shade
(Date:4/3/2017)... , April 3, 2017  Data ... precision engineering platform, detected a statistically significant ... product prior to treatment and objective response ... the potential to predict whether cancer patients ... to treatment, as well as to improve ...
(Date:3/29/2017)...  higi, the health IT company that operates the ... , today announced a Series B investment from ... The new investment and acquisition accelerates higi,s strategy to ... population health activities through the collection and workflow integration ... collects and secures data today on behalf of over ...
(Date:3/24/2017)... 2017 Research and Markets has announced the ... & Trends - Industry Forecast to 2025" report to their ... The Global ... CAGR of around 15.1% over the next decade to reach approximately ... the market estimates and forecasts for all the given segments on ...
Breaking Biology News(10 mins):
(Date:4/19/2017)... , April 19, 2017 A new report published by ... Forecast, 2014-2022 ," the global market was valued at $6,769 million in 2015, ... 9.6% from 2016 to 2022. ... Allied Market Research Logo ...      (Logo: http://photos.prnewswire.com/prnh/20140911/647229) The ...
(Date:4/19/2017)... SOUTH SAN FRANCISCO, Calif. , April 19, ... VCYT ) today announced that it ... after close of market on Wednesday, May 3, 2017. ... call and webcast at 4:30 p.m. Eastern Time to discuss ... The live webcast and subsequent replay may ...
(Date:4/18/2017)... ... April 18, 2017 , ... ... awarded Channel Partners 2017 Next-Gen Solution Provider. , Channel Partners program recognizes IT ... with their vision, innovation, and advocacy of the channel during transition and convergence. ...
(Date:4/18/2017)... , ... April 18, 2017 , ... ... that Dr. Mark Boguski has been appointed to the role of Chief Medical ... medicine solutions. , “Dr. Boguski is widely considered a visionary leader in ...
Breaking Biology Technology: